150 lines
7.3 KiB
Python
150 lines
7.3 KiB
Python
import re, unittest
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from urlparse import urlparse
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from django.db import transaction
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from django.core import management, mail
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from django.db.models import get_apps
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from django.test import _doctest as doctest
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from django.test.client import Client
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normalize_long_ints = lambda s: re.sub(r'(?<![\w])(\d+)L(?![\w])', '\\1', s)
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class OutputChecker(doctest.OutputChecker):
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def check_output(self, want, got, optionflags):
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ok = doctest.OutputChecker.check_output(self, want, got, optionflags)
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# Doctest does an exact string comparison of output, which means long
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# integers aren't equal to normal integers ("22L" vs. "22"). The
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# following code normalizes long integers so that they equal normal
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# integers.
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if not ok:
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return normalize_long_ints(want) == normalize_long_ints(got)
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return ok
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class DocTestRunner(doctest.DocTestRunner):
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def __init__(self, *args, **kwargs):
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doctest.DocTestRunner.__init__(self, *args, **kwargs)
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self.optionflags = doctest.ELLIPSIS
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def report_unexpected_exception(self, out, test, example, exc_info):
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doctest.DocTestRunner.report_unexpected_exception(self,out,test,example,exc_info)
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# Rollback, in case of database errors. Otherwise they'd have
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# side effects on other tests.
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from django.db import transaction
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transaction.rollback_unless_managed()
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class TestCase(unittest.TestCase):
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def _pre_setup(self):
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"""Perform any pre-test setup. This includes:
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* If the Test Case class has a 'fixtures' member, clearing the
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database and installing the named fixtures at the start of each test.
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* Clearing the mail test outbox.
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"""
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management.flush(verbosity=0, interactive=False)
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if hasattr(self, 'fixtures'):
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management.load_data(self.fixtures, verbosity=0)
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mail.outbox = []
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def __call__(self, result=None):
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"""
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Wrapper around default __call__ method to perform common Django test
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set up. This means that user-defined Test Cases aren't required to
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include a call to super().setUp().
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"""
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self.client = Client()
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self._pre_setup()
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super(TestCase, self).__call__(result)
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def assertRedirects(self, response, expected_path, status_code=302, target_status_code=200):
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"""Assert that a response redirected to a specific URL, and that the
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redirect URL can be loaded.
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"""
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self.assertEqual(response.status_code, status_code,
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"Response didn't redirect as expected: Response code was %d (expected %d)" %
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(response.status_code, status_code))
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scheme, netloc, path, params, query, fragment = urlparse(response['Location'])
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self.assertEqual(path, expected_path,
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"Response redirected to '%s', expected '%s'" % (path, expected_path))
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redirect_response = self.client.get(path)
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self.assertEqual(redirect_response.status_code, target_status_code,
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"Couldn't retrieve redirection page '%s': response code was %d (expected %d)" %
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(path, redirect_response.status_code, target_status_code))
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def assertContains(self, response, text, count=1, status_code=200):
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"""Assert that a response indicates that a page was retreived successfully,
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(i.e., the HTTP status code was as expected), and that ``text`` occurs ``count``
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times in the content of the response.
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"""
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self.assertEqual(response.status_code, status_code,
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"Couldn't retrieve page: Response code was %d (expected %d)'" %
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(response.status_code, status_code))
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real_count = response.content.count(text)
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self.assertEqual(real_count, count,
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"Found %d instances of '%s' in response (expected %d)" % (real_count, text, count))
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def assertFormError(self, response, form, field, errors):
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"Assert that a form used to render the response has a specific field error"
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if not response.context:
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self.fail('Response did not use any contexts to render the response')
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# If there is a single context, put it into a list to simplify processing
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if not isinstance(response.context, list):
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contexts = [response.context]
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else:
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contexts = response.context
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# If a single error string is provided, make it a list to simplify processing
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if not isinstance(errors, list):
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errors = [errors]
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# Search all contexts for the error.
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found_form = False
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for i,context in enumerate(contexts):
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if form in context:
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found_form = True
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for err in errors:
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if field:
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if field in context[form].errors:
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self.failUnless(err in context[form].errors[field],
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"The field '%s' on form '%s' in context %d does not contain the error '%s' (actual errors: %s)" %
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(field, form, i, err, list(context[form].errors[field])))
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elif field in context[form].fields:
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self.fail("The field '%s' on form '%s' in context %d contains no errors" %
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(field, form, i))
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else:
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self.fail("The form '%s' in context %d does not contain the field '%s'" % (form, i, field))
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else:
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self.failUnless(err in context[form].non_field_errors(),
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"The form '%s' in context %d does not contain the non-field error '%s' (actual errors: %s)" %
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(form, i, err, list(context[form].non_field_errors())))
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if not found_form:
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self.fail("The form '%s' was not used to render the response" % form)
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def assertTemplateUsed(self, response, template_name):
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"Assert that the template with the provided name was used in rendering the response"
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if isinstance(response.template, list):
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template_names = [t.name for t in response.template]
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self.failUnless(template_name in template_names,
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u"Template '%s' was not one of the templates used to render the response. Templates used: %s" %
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(template_name, u', '.join(template_names)))
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elif response.template:
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self.assertEqual(template_name, response.template.name,
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u"Template '%s' was not used to render the response. Actual template was '%s'" %
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(template_name, response.template.name))
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else:
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self.fail('No templates used to render the response')
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def assertTemplateNotUsed(self, response, template_name):
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"Assert that the template with the provided name was NOT used in rendering the response"
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if isinstance(response.template, list):
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self.failIf(template_name in [t.name for t in response.template],
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u"Template '%s' was used unexpectedly in rendering the response" % template_name)
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elif response.template:
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self.assertNotEqual(template_name, response.template.name,
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u"Template '%s' was used unexpectedly in rendering the response" % template_name)
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